diff --git a/internal/api/server.go b/internal/api/server.go
index 76e9a33aa3..a610b76c2a 100644
--- a/internal/api/server.go
+++ b/internal/api/server.go
@@ -993,7 +993,7 @@ func (s *Server) UpdateClients(cfg *config.Config) {
 	}
 
 	total := authEntries + geminiAPIKeyCount + claudeAPIKeyCount + codexAPIKeyCount + vertexAICompatCount + openAICompatCount
-	fmt.Printf("server clients and configuration updated: %d clients (%d auth entries + %d Gemini API keys + %d Claude API keys + %d Codex keys + %d Vertex-compat + %d OpenAI-compat)\n",
+	log.Debugf("server clients and configuration updated: %d clients (%d auth entries + %d Gemini API keys + %d Claude API keys + %d Codex keys + %d Vertex-compat + %d OpenAI-compat)",
 		total,
 		authEntries,
 		geminiAPIKeyCount,
diff --git a/sdk/cliproxy/auth/conductor.go b/sdk/cliproxy/auth/conductor.go
index cd447e68d4..6a2caed39c 100644
--- a/sdk/cliproxy/auth/conductor.go
+++ b/sdk/cliproxy/auth/conductor.go
@@ -2159,7 +2159,12 @@ func (m *Manager) refreshAuth(ctx context.Context, id string) {
 	updated.NextRefreshAfter = time.Time{}
 	updated.LastError = nil
 	updated.UpdatedAt = now
-	_, _ = m.Update(ctx, updated)
+	// Use WithSkipPersist to avoid writing the refreshed token back to disk.
+	// The in-memory state is already updated; persisting here would trigger
+	// the file watcher, which calls reloadCallback -> UpdateClients, creating
+	// a write-back feedback loop that spams the log with "configuration updated"
+	// messages every ~1 minute per token.
+	_, _ = m.Update(WithSkipPersist(ctx), updated)
 }
 
 func (m *Manager) executorFor(provider string) ProviderExecutor {